INFLUENZA VIRUSES ISOLATED BY
WHO/NREVSS Collaborating Laboratories
2010 - 2011 Season
Week A(H1) 2009 A H1N1 A(H3) A(unable to sub-type) A(Subtyping not performed) B Total # Tested % Positive
40 0 9 15 0 29 22 3330 2.25
41 0 13 32 0 41 26 3461 3.24
42 0 6 29 0 51 33 3114 3.82
43 0 2 7 0 7 9 1853 1.35

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